【Premium Glass Material】 Made from thickened, lead-free glass, these 20oz tumblers are sturdy, odor-resistant, and built to last—perfect for daily use with both cold and room-temperature drinks.【Wide Mouth & Thick Straw】 The generously sized straw and wide cup opening make sipping boba pearls, smoothies, or creamy iced coffee effortless and enjoyable.【Elegant Ribbed Design】 The vintage-inspired ribbed texture adds a stylish touch while allowing you to easily monitor your drink’s layers, color, and consistency.【Easy to Clean & Reusable】Dishwasher safe for effortless cleanup, with a cleaning brush included to keep the straws spotless. Enjoy fresh, mess-free drinks every time with this glass tumbler set.【Complete & Convenient Set】 Includes 2 ribbed glass cups , 2 bamboo lids , 2 glass straws, 1 cup brush and a straw brush—everything you need for spill-free sipping and easy maintenance at home or on the go.